Corrugated roof



A. KARASZ CORRUGATED ROOF Filed May l5 1924 Ammmsz wuemboz Patented July 13, 1926.

UNITED STATES PATENT OFFICE.

ALADAR KARASZ, F NEW YORK, N. Y.

lo per pulp roofs which means will be easy to CORRUGATED ROOF.

Application filed May 15, 1924. Serial' No. 713,432.

My invention relates to roof structures and has for its main object to provide a roof composed of sheets of corrugated paper pulp hoard, or other similar material, which will be lighter in weight, cheaper in cost and easier in assembling than the roof structures used at present.

VAnother object of my invention is to provide securing means for said corrugated paassemble or to dismantle, and which do not require nails or pegs, and do not cause any injury to the purlins of the roof or to the corrugated sheets themselves, thereby making my roofs more resisting to weather intluences than the roofs at present in use.

Other objects of this invention will be apparent as the specification of the same proceeds.

With the above and other objects in view, my invention mainly consists in providing corrugated sheets of paper pulp board or other similar light and heat insulating materials or fabricshmaking them water and fire proof, arrang1ng them over longitudinally set pairs of purlins on a usual roof construction, securing the lower sheets to said purlins by bolts or'other 'similar vremovable means, said means carrying hook devices for dropping the upper sheets into them, Whereby the upper end of the lower sheets will not only be secured to the roof supporting structure, but itself, and all its securing means, will be permanently covered and protected by the loweredges of the upper sheets.

For a full description of the invention and the merits thereof and also to acquire a knowledge of details of construction of the same for effecting the various results mentioned hereinbefore, reference isto be had to the following description and accompanying drawings, forming part of this specification.

lVhile the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Fig. 1 is a fragmentary plan view of my roof constructionfshowing that portion of the sai-ne where the two/ corrugated sheets are joined and secured to one another byy 'my improved clamp device,

Fig. 2 is a sectional view of the same, the section being taken on the line 2-2 of Fig. 1,

Fig. 3 is another sectional view, taken on the line 3 3 of Fig. 1. and showing a cross section of a portion of my corrugated pulp board only,

Figs. 4 and 5, are plan and cross sectional views, respectively, of an improved hook used in connection with my clamp device, while l.

Figs. 6 and 7 are fragmentary plan and sectional views of an improved plug board.

Referring more closely to the drawings, the numeral 8 designates the lower one of the two corrugated sheets, the joining and Securing of which is shown by the drawing, while the upper one of said sheets is indicated by the character 9. At every place where the covering sheets of my roof structure are joinedin the length-wise direction l preferably provide two longitudinal purlins 10 and 11 closely set to one another but having a space 12v left between them and of suitable size to receive the screw bolt 13. Only the lower one of the two roof covering sheets will be directly secured to said supports 10 and 11, while the upper one of the corrugated sheets will be secured in its place in a manner to be described hereinafter. The lower corrugated sheet 8 reaches about as high as to cover both purlins 10 and 11, but does not rest directly on them since I preferably employ a right angular rest piece 14 underneath the same to bridge over the space between said two purlins, being made of sheet metal and generally' following the curve of the corrugated sheet. 1`hevcorrugatcd sheet 8 having been placed over said rest piece 14, the clamp device 15 is placed thereon having an elongated right angular shape and a curvature in the crosswise direction following that of the corrugated sheet and ending in Itwo fork-like eX- tensions 16 bent doubly and upwardly to leave a space 17 between them and the body of the clamp device 15. Each of the three elements just described, that is; the rest piece 14, the lower corrugated sheet 8, and the hooked clamp 15, have elongated recesses designated respectively' by the characters 18,

.19 and 20, but into them, and after Said three pieces have been suitably adjusted over one another and over the purlins 10 and 1], the bolt 13 is passed through said recesses and through the space l2 and rmly secured in its position by the use of the washer 21 and nut 22 at the inner side of the roof structure. square head 23 fitting into the slot 20 in the The bolt 13 preferably has a the rest.. piece clamp so that it will be entirely flush with the outer surface of said clamp device when nut 22 firmly draws and secures it into its position. Tosupport the head 23 and to prevent it from rotation while the nut 22 1s being secured or loosened, the two sides of the slot E() may have depending inclined extensions` 24 and 25 pressed out of the material of the clamp 15 and integral therewith.

After having thus built ap one layer of lower sheets 8, the upper sheets 9 will be secured to the same by simply dropping them into the spaces 17 of hooked clamps 15. The upper ends of the upper sheets 9 will then be secured to the next upper pair of purlins in the same manner as the upper ends of the lower corrugated sheets 8 have been secured to the purlin-s 10 and 11.

In case it is desired to renew the roofing entirely or any portion of the same, the nuts of the respective bolts 13 will be removed and all the elements of my securing clamps,- as well as the respective sheets of roof covering, may then be entirely removed, irrespective of how long the roof has been in use and in what condition its elements are. t

In Figs. 6 and 7, I show a novel form of corrugated sheet rooting material, the ridges 25 of which are not continuous but showing spaced apart breaks 26. At the breaks 26 the roofing -sheet may be kept straight and at a depth corresponding to the lowest depths of the valleys of corrugation. The breaks 26 may be arranged in a staggered or zig- '/.ag manner in the adj acent`\ridges of corrugation. This novel roofing sheet is especially adapted to be used in connection with my hookedl securing clamps and it not only will give a novel and attractive appearance to my roof but it also will give additional strength to the rooting sheets and the flat portions 26 of the same will prevent the side-way spreading of the roofing sheets caused by the flattening of the corrugations.

Instead of the nut 22, I may provide a slot through my bolt and a wedge therein whereby to secure said bolt or to release the Same..

forated part of every sheet is entirely covthe clamp ered by the unperforated part of the next upper sheet and so are all the elements of so that water cannot get to them and they are protected against rust and other destructive effects of the atmosphere. The respective roofing sheets as well as .the elements of my securing device are provided with means to accommodate them to the valleys in the materials and to the possible variations inv the structure, and in consequence the adjustments to be made are easily done, resulting in efficient work and much saving in labor. Saving in lumber will also result since no boarding is needed and since the weight of the corrugated pulp is comparatively smaller than the rooting materials used at present, and all the supporting structures may also be lighter than usual. The corrugated pulp board may be easily made water and fire proof, and since it is a heat insulator, less perils will result in the case of a fire than when sheet metal or tile are used, while the attic Will be cool in summer which makes my roof construction especially adaptable in the tropics or in climates with hot summers.

Having thus described my invention, I claim, is:

In a roof construction, a supporting structure having spaced apart pairs of longitudinal purlins, longitudinal rows of corrugated roofing sheets having longitudinally over-lapping margins over said pairs of urlins, spaced apart elongated perforations in the lower ones of said over-lapping mar-l what gins, a rest piece placed underneath each' perforation having a curvature to fit the curve of the valley of the roofing sheet corrugation and an elongated recess therein to Ameet the perforation in the roofing sheet,

a clamp device having an elongated body portion to tit over the lower sheet at the place of said perforation and showing a similar elongated perforation, a bolt passing through said three perforations and through the space between the two purlins, said bolt having a head to rest in the perforation of said clamp device and removable securing means at its opposite end, the body of said clamp being continued in a downward extension doubled over itself to form a hook adapted to receive the lower margin of the upper roofing sheet.

Signed at New York in New York and State of New York, this day of May A. D. 1924.

ALADAR KARASZ,

the county of 8th 

